1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/pid.h b/include/linux/pid.h
index 22921ac4cfd9..d7e98ff8021e 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -161,4 +161,13 @@ pid_t pid_vnr(struct pid *pid);
                         }                                               \
         } while (0)
 
+#define do_each_pid_thread(pid, type, task)                             \
+        do_each_pid_task(pid, type, task) {                             \
+                struct task_struct *tg___ = task;                       \
+                do {
+
+#define while_each_pid_thread(pid, type, task)                          \
+                } while_each_thread(tg___, task);                       \
+                task = tg___;                                           \
+        } while_each_pid_task(pid, type, task)
 #endif /* _LINUX_PID_H */